Closing parcels



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April 19, 192,7. P. GANGLER cLosING PARcELs Filed Oct. 6, 1923 5 Sheets-Sheet 2 imm Amun 19,1927. R GANGLER CLOSING PARCELS Filed Oct. 6, 1923 5 ShetswShem" s Apr w, 1927.. 1,625,720

P. GANGLER CLOSING PARCELS Filed oct. 6,1923 l 5 sheets-sheet 4.

P. GANGLER April 19, 1927.

CLOSING PARCELS Filedl Oct. 6, 1923 5 Sheets-Sheet 5 Panarea Apr. 19, 1927.

UNITED STATES PATENT OFFICE.

.PAll'll'.'` GANGLER, 0F ESSLINGEN, GERM-ANY, ASSIGNOR T0 THE' FIRM FR. HESSER MASCHINENFABRIK-AIKTIENGESELLSCHAFT, OF STUTTGART-CANNSTATT, GEB- CLOSING PARCELS.

.application led October 6, 1923, Serial No. 666,987, and in Germany Dotober 17, 1922.

My invention refers to the handling of parcels formed of an outer envelope and an inner bag, such as for instance a carton and a bag of parchment paper or the like inserted therein, such cartons being emplo ed vfor instance in packing powders suc as cocoa. The invention more especially refers to the closing of the inner bag after ithas been filled with the powder andv comprises means for carrying out this operation in a particularly eifectwe manner.

According to the present invention, the fold- ,I

` ing procedure practiced up till now by hand whereupon the coiled portion of the bag is inserted into the outer envelppeor folded in some other manner, the outer envelope being thereafter closed in a well known lyhthe drawings affixed to this specifica-v tion and forming part thereof, a machine embodying m invention and adapted for carr ing out the operations described above is illustrated diagrammatically by way of example.

ln the drawings- Figure 1 is an-elevation viewed in the direction of feed of the device for flattening that portion of the innerbag which projects from theouter envelope, some of thepartsof this device and also the parcel being shown in section.

Figure 2 is an end view,

Figure 3 is an elevationv showing the device for coilin the projecting portion of the inner bag, t e feeding truck beingr shown in section. v

Figure 4 is an end `view shown from the left of the device disclosed. in lFi re 3 some parts being omitted for the sake of clearness.

been flattened by fof the folding procedure,

Figure 6 showing the parcel in side view,

end view and plan view before this procedure is started, while Figure 7 shows it in side andend view with the projecting portion of the inner bag flattened.

Figure 8 shows similar views of the parcel after the projecting portion of the inner bag has been coiled and AFigure 9 is an elevation of the parcel with the upper portion of the inner bag coiled and pressed into the carton.

Referring to the drawings which represent a packing machine in which the parcels- P are fed, one after the other, through the machine, the angular bottom members 17', 17 and top ledges 18', 18 form a straight 'feed track. A well known feeding device (notshown) feeds the parcels, step by step, through the several stations in which the parcels are filled closed labelled and so on y well known devices suited to this purpose. The angular members .17', 17 are liked to supports 100 mounted on the machine table T. In the example shown in the drawings, the parcel 'P consists of an outer carton a withfour flaps a1, 0,2, as, a4 and, of an inner envelope or bag b, the empty upper portion b of which ,projects from the carton. The parcel shown in the drawing has already been lled and shall now be closed, first of all by flattening the projecting ortion b.

T e means for thus flattening this portion of the bag form the object of my coending application for patent of the United `tates executed of even date'herewith and comprises blade-shaped spreading members 1 and 1 lixed toarms 5, 5 which are mounted on bolts 4, 4. These bolts are rotatably located in lateraly eyes 6,16 of a support 7 fixed to a rail 8. This rail is arranged to be reciprocated vertically in a guide 14: of the standard 9 by means of a lever 10 turning on bolts 19 located in a bearing 101@ of the standard 9 and an eccentric rod 11 ac,

tuated in a well known manner by an eccentric on the main shaft (not shown). On the iner ends of the bolts 4, 4 are fixed arms 2, 2 which carry rollers 3, 3 held in contact with switch members 12, 12 by means of a spring 20. The switch members are arranged for lateral adjustment on a plate 21 which is mounted on the lateral rails of the guide 14 for vertical adjustment. l

This device operates as follows: On the parcel l? reaching this part of the machine, the device above described is in its upper position (not shown in the drawing) in which the rollers 3, 3 are applied against the upper end of the bevelled portions of the switch members 12, 12 whereby the spreading members 1, 1 are caused to assume an inoperative inner position. The device is now moved into the lower position shown in the drawing by lowering rail 8. This causes the spreading members l, 1 to enter the projecting ,portion b of the innner envelope or bag b and, owing to the cooperation of the switch members 12, 12 and guide rollers 3, 3, to be gradually moved into theirlower and outer end position shown in the drawing. In this manner the upper portion b of the inner bag is spread flat.

After these parts have been carried back into their initial position, the parcel P is fed forwards to the station shown in Figs. 3-5 where the flattened portion Z2 is coiled and'pressed into the carton a.

The members for coiling the flattened portion b shown in the drawing consist of two mandrels disposed on either side of the flat portion of the bag in the direction of feed of the parcel and are formed like pincers or nippers in order to enable them to grip this portion. Each mandrel consists of a fixed arm 23 and a movable arm 23 which is pivoted at 24 to the fixed arm and provided with an angularly bent arm 25 carrying a roller 27 and acted upon by a closing spring 26. These mandrels are opened by means of a plate 28 which is adapted to be displaced, with regard to the rollers 27 and fixed to a displaceable rod 28 which is acted upon by an angle lever 31pivoted at 29 to support 30 and by the. connecting rod 32 of an eccentric (not shown) for actuating the arms 25.

The mandrels and nippers 23, 23 are rotatably located in brackets 32 which can be moved horizontally with regard to each other. To this end the brackets 32 are fixed to slides slidably guided in a guide 34, this guide being in turn provided with a guide 35, for vertical reciprocating motion on a vertical rail 36 fixed to the support 37 mounted on the table T.

The slides 33 are connected by a spring 38 which tends to pull them together but such tendency is counteracted by two angular levers 40, 40 fulcrumed to the support 37 at 44, 44. Each upright arm 40 of said angular levers engages against a roller 42 at the rear of each slide, and their horizontal arms 40 bear on a slide 46 which is adapted to be reciprocated in a guide 47 at the rear of the support 37 by a rocking lever 48 which is fulcrumed in an extension 37 of the support at 59 and actuated by an eccentric, not shown.

lVhen the slide 46 is raised, the arms 40 will be moved apart and push the slides 33 away from each other against the action of the spring 38. The brackets 32 and the mandrels 23, 3 will partake in this displacement. ()n the other hand, when the slide 46 is lowered, the spring 38 will be free to move the slides 33 toward cach other to the extent permitted by the rocking motion of the arms 40.

The vertical reciprocating motion of guide 34 by aid of the guide 35 mounted on rail 36 is brought about by lever 50 rotatably arranged at 51 on an extension 37 of the support 37 and actuated by means of a rod 52 from an eccentric (not shown).

The coiling mandrels 23, 23 are caused to rotate by means of toothed wheels 52 rotatably located on brackets 32 and meshing with racks 53 which are guided at their upper ends in uides 54 fixed to the rail 36 and are fixe with their lower ends by means of a transverse rod 55 on a slide 56 which is guided for vertical reciprocation in a guide 57 on the support 37. The slide 56 is reciprocated by means of a lever 58 pivoted at 59 to the support. 37 and actuated by a rod 60 from an eccentric, not shown.

This device operates as follows z--On the inner bag b having been flattened according to Fig. 7 and having reached the coiling station, the coiling mandrels 23, 23 are in their raised outer position (not shown). By moving rod 28 and the plate 28 forwards, the rollers 27 are moved backwards, the mandrels 23, 23 are opened and by spring 38 at the same time moving levers 40, 40 inwards, as the slide 46 is now lowered by its rocking lever 48, the slides 33 and the mandrels are moved towards each other into the position shown in Fig. 5. As the rod 28 recedes, the mandrels are closed by the spring 27 and grip the flattened portion of the bag from both sides. The racks 53 are now raised by the means described above, whereby the toothed wheels 52 and the mandrels 23, 23 are set rotating. At the same time, the guide 34 moving downwards under the action of its lever 50, lowers by means of lever 50 the mandrels according as the coil ing of the portion b of the bag advances, whereby this portion is finally coiled as shown in Fig. 8. After this has been effected the slide 34 is raised by the lever 50 and the coiling mandrels again assume their original position. The coiled portion of the bag can now be pressed into the carton by means of a plunger 60 (Fig. 9), the plunger 60 Ibeing lowered into t e carton b tlie support 30 at 6l and by the connecting rod 63 of an eccentric (not shown)L The inner bag having thus been closed, the iiaps L1-a4 o f the carton a are closed and the label is pasted on by well known means. n

I Wish it to be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

1. In a device for closing a iill'ed bag, means for atteningthe empty lportion of the bag, horizontal rotary meansadapted to grip the uppermost edge of said flattened empty portion, means for rotating said horizontal rotary means, causingthem to coil the said empty portion, and means for reducing the relative distance of the said hori-` zontal means from the top of the lled portion of the bag while coiling the empty portion.

2. In a device Jfor closino" a filled bag in. ser-ted in a carton, means ihr flattening the empty portion of the bag, horizontal -rotary means adapted to grip the-uppermostedge of said liattened empty portion, means for rotating said horizontal rotary ineans, causing them to coil the said empty portion, means for reducing the Yrelative distance of the said horizontal means from the top a double armed lever 62, 62 located on,

-fllled portion of the bag While colling the empty portion.

4. In a device for closing a filled bag, means for liattening the empt portion of the bag, a pair of rotary man rels adapted to grip the top edge of said flattened empty portion, means for moving said mandrels into and out of their gripping position, means for rotating said mandrels in said gripping position for coiling the said empty portion, and means for moving the mandrels toward the top of the filled portion of the bag 'while coiling the empty portion.

5. In a device for" closing a filled bag, means for flattening the empty ortion of the bag, a pair of rotar mandre s adapted to grip the uppermost e ge of said-attened empty portion, slides carrying said mandrels and being displaceable in a horizontal guide relatively to each other for moving said mandrels into and out of their gripping posi-y tion, said horizontal guide being capable. of vertical reciprocating motion for moving said mandrels toward the top of the filled portion of the bag, and movable racks for rotating said mandrels In testimony whereof I affix my sivnature. 

